<form action="/upload/2?test=2" method="post" enctype="multipart/form-data">
    <h2>多图上传</h2>
    <input type="file" name="avatar">
    <input type="text" name="nick" value="2323">
    <!-- <input type="file" name="logo"> -->
    <input type="submit" value="提交">
</form>